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Signatures sent on their own (SIGNATURES, every second, to each peer
not sent them yet) flooded every link: a signature made after its
change left, or one that came with changes, went to every neighbour,
whether or not it got the change along with its signature elsewhere.
With every change of a node signed as it leaves (1217) and signatures
going where their changes go (1218), none is left for them to carry:
the message, its task and its traffic counter go (wire version 46).
Signatures waiting for their changes are offered as before when sync
messages bring them, and the changes waiting for signatures judged
again with the next batch.
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Review 2, N7, the care it raised: a joining node's empty document took
as the first epoch's root whatever dependency-less change came first,
from whichever peer it joined through; the first epoch's ID is all
zeros, so nothing pinned it. A remake's epoch has its ID, the snapshot
change's hash, which the rules hold its root to.
* Every node names its epoch's root in HELLO and HELLO_REPLY (the
epoch's ID for a remake's, its genesis change for the first; wire
version 45). A node whose document starts from another root of the
same epoch refuses the handshake, logging it: another history under
the swarm's ID, a forged root or a genesis started again.
* A joining node with an empty document takes as its root only the one
it was given (--genesis-root, new), else the one its peers name, and
none while they name different ones (access::screen::RootPin, kept
in Screening across documents): one peer hands it another root only
if it is all the joiner hears, or never, with --genesis-root. A root
refused is listed with the refused, what builds on it with it.
* The genesis node logs the root (`The swarm's root`); GET
/admin/epochs shows it (`root`).
A genesis started again under a remembered swarm ID used to merge with
the nodes of it still running; they now refuse it (another root), and
the docs say to join them with seeds instead.
The epoch's identity stays as it is (generation 0 all zeros): records
and epoch metadata name it so, and every comparison of epochs with
them.
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A node refusing changes a peer brought tells it which broke a rule; the
peer judges them itself, and if its rules refuse them too, drops them
with all built on them (its document forked without them, a fresh
actor), quarantining its own writes among them. Wire version 42.
Auth plan M6 (rejoin on taint).
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Signatures no sync message took go on their own within a second, to
each peer not sent them yet (wire version bumped).
Auth plan M5.
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The dashboard reads every member's links from the members themselves;
LINKS and LINKS_REPLY, swarm::links and their wire tags go (wire
version bumped). Nodes the browser can't reach are drawn from what the
reachable ones measure.
Auth plan M3.
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Introduce two new wire messages, LINKS and LINKS_REPLY (swarm::links).
A member answers with its links: for each peer, the transport, whether
it’s relayed, the RTT, and whether it’s dormant. It answers members
only, at most every 5 s. This bumps wire::VERSION to 7. Every build
answers, with or without the feature, so every node needs this patch
before the map shows anything beyond its own node.
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This allows storing the swarm ID and additionally discovered seeds,
which prevents a formerly genesis node to start a new document.
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Nodes push changes to their neighbours but don't relay them directly.
In a partial mesh, nodes can learn about missing changes via keepalive
messages and can pull them from their neighbours.
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This allows changing sources without the fixed 30 s stall duration.
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